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https://issues.apache.org/jira/browse/SPARK-34596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh reassigned SPARK-34596:
-----------------------------------
Assignee: Kris Mok
> NewInstance.doGenCode should not throw malformed class name error
> -----------------------------------------------------------------
>
> Key: SPARK-34596
> URL: https://issues.apache.org/jira/browse/SPARK-34596
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.7, 3.0.2, 3.1.0
> Reporter: Kris Mok
> Assignee: Kris Mok
> Priority: Major
> Fix For: 3.2.0, 3.1.2, 3.0.3
>
>
> Similar to SPARK-32238 and SPARK-32999, the use of
> {{java.lang.Class.getSimpleName}} in {{NewInstance.doGenCode}} is problematic
> because Scala classes may trigger {{java.lang.InternalError: Malformed class
> name}}.
> This happens more often when using nested classes in Scala (or declaring
> classes in Scala REPL which implies class nesting).
> Note that on newer versions of JDK the underlying malformed class name no
> longer reproduces (fixed in the JDK by
> https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8057919), so it's less
> of an issue there. But on JDK8u this problem still exists so we still have to
> fix it.
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